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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /* SCTP kernel implementation
- * (C) Copyright Red Hat Inc. 2017
- *
- * These are definitions used by the stream schedulers, defined in RFC
- * draft ndata (https://tools.ietf.org/html/draft-ietf-tsvwg-sctp-ndata-11)
- *
- * Please send any bug reports or fixes you make to the
- * email addresses:
- * lksctp developers <[email protected]>
- *
- * Written or modified by:
- * Marcelo Ricardo Leitner <[email protected]>
- */
- #ifndef __sctp_stream_sched_h__
- #define __sctp_stream_sched_h__
- struct sctp_sched_ops {
- /* Property handling for a given stream */
- int (*set)(struct sctp_stream *stream, __u16 sid, __u16 value,
- gfp_t gfp);
- int (*get)(struct sctp_stream *stream, __u16 sid, __u16 *value);
- /* Init the specific scheduler */
- int (*init)(struct sctp_stream *stream);
- /* Init a stream */
- int (*init_sid)(struct sctp_stream *stream, __u16 sid, gfp_t gfp);
- /* free a stream */
- void (*free_sid)(struct sctp_stream *stream, __u16 sid);
- /* Frees the entire thing */
- void (*free)(struct sctp_stream *stream);
- /* Enqueue a chunk */
- void (*enqueue)(struct sctp_outq *q, struct sctp_datamsg *msg);
- /* Dequeue a chunk */
- struct sctp_chunk *(*dequeue)(struct sctp_outq *q);
- /* Called only if the chunk fit the packet */
- void (*dequeue_done)(struct sctp_outq *q, struct sctp_chunk *chunk);
- /* Sched all chunks already enqueued */
- void (*sched_all)(struct sctp_stream *steam);
- /* Unched all chunks already enqueued */
- void (*unsched_all)(struct sctp_stream *steam);
- };
- int sctp_sched_set_sched(struct sctp_association *asoc,
- enum sctp_sched_type sched);
- int sctp_sched_get_sched(struct sctp_association *asoc);
- int sctp_sched_set_value(struct sctp_association *asoc, __u16 sid,
- __u16 value, gfp_t gfp);
- int sctp_sched_get_value(struct sctp_association *asoc, __u16 sid,
- __u16 *value);
- void sctp_sched_dequeue_done(struct sctp_outq *q, struct sctp_chunk *ch);
- void sctp_sched_dequeue_common(struct sctp_outq *q, struct sctp_chunk *ch);
- int sctp_sched_init_sid(struct sctp_stream *stream, __u16 sid, gfp_t gfp);
- struct sctp_sched_ops *sctp_sched_ops_from_stream(struct sctp_stream *stream);
- void sctp_sched_ops_register(enum sctp_sched_type sched,
- struct sctp_sched_ops *sched_ops);
- void sctp_sched_ops_prio_init(void);
- void sctp_sched_ops_rr_init(void);
- #endif /* __sctp_stream_sched_h__ */
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